뉴스 잉글리쉬[기사원문]Dirt is good for babies19th July, 2017 It seems like common sense to most parents to make sure their baby is always in a clean place. Most parents do their best to keep dirt and bacteria away from their little ones. However, a scientist says dirt is an important part of making babies stronger. Dr Jack Gilbert from the University of Chicago studies the ecosystems of bacteria. He did ..
